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Tests of Full-Size Pultruded FRP Grating Reinforced Concrete Bridge Decks

by Lawrence C. Bank, Catholic Univ of America, Washington, United States,
Zuhan Xi, Catholic Univ of America, Washington, United States,
Eric Munley, Catholic Univ of America, Washington, United States,



Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures

Abstract:

Results of tests of full-size concrete bridge deck slabs reinforced with commercially produced pultruded fiber-reinforced plastic (FRP) gratings are presented. The slabs were designed to comply with AASHTO recommendations. They were 10 ft (3.05 m) long, 4 ft (1.22 m) wide and 8.5 in (0.22 m) deep and were reinforced with a single FRP grating placed 0.5 in (1.27 cm) from the slab bottom. Two different 2.0 in (5.08 cm) high gratings were used. Three slabs with each grating type were tested. A control slab reinforced with #5 steel rebars at 4.5 in (0.11 m) on-center was also tested. The slabs were simply-supported and tested under monotonic and cyclic quasi-static loading applied at the center of the slab over an AASHTO recommended truck tire contact area. The results of the tests are presented and descriptions of the failure modes are provided.

Subject Headings: Concrete bridges | Slabs | Fiber reinforced polymer | Bridge decks | Fiber reinforced concrete | Bridge tests | Reinforced concrete

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